There are quite a few ways to extract words and substrings from lines of text on a Linux system, replace them with other strings, select delimiters, and even get rid of white space at the beginning ...

At the end of February we announced the arrival of the first US recession since 2009 and we predicted that the market will decline by at least 20% in (Recession is Imminent: We Need A Travel Ban NOW).

The first command we’ll examine in this post is a very unusual awk command that systematically removes every line in the file that is encountered more than once. It leaves the first instance of the ...